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214442255 = 542888451
BaseRepresentation
bin11001100100000…
…10000100001111
3112221111210110202
430302002010033
5414344123010
633140124115
75212505036
oct1462020417
9487453422
10214442255
11100057705
125b99663b
1335572b11
14206a171d
1513c5d6a5
hexcc8210f

214442255 has 4 divisors (see below), whose sum is σ = 257330712. Its totient is φ = 171553800.

The previous prime is 214442251. The next prime is 214442257. The reversal of 214442255 is 552244412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 214442255 - 22 = 214442251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214442251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21444221 + ... + 21444230.

It is an arithmetic number, because the mean of its divisors is an integer number (64332678).

Almost surely, 2214442255 is an apocalyptic number.

214442255 is a deficient number, since it is larger than the sum of its proper divisors (42888457).

214442255 is an equidigital number, since it uses as much as digits as its factorization.

214442255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42888456.

The product of its digits is 12800, while the sum is 29.

The square root of 214442255 is about 14643.8470013859. The cubic root of 214442255 is about 598.5541622390.

Adding to 214442255 its reverse (552244412), we get a palindrome (766686667).

The spelling of 214442255 in words is "two hundred fourteen million, four hundred forty-two thousand, two hundred fifty-five".

Divisors: 1 5 42888451 214442255